The importance of the CTAB surfactant on the colloidal seed-mediated synthesis of gold nanorods

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Abstract

Gold nanorods were synthesized by the colloidal seed-mediated, surfactant-assisted approach [Gou et al., Chem. Mater. 2005, 17, 3668-3672] using CTAB (hexadecylcetyltrimethylammonium bromide) obtained from ten different suppliers. The yield of gold nanorods depended strongly on the CTAB used: with the same recipe, three of the CTABs did not yield nanorods and produced only spherical gold particles, whereas the other CTABs yielded nanorods with nearly 100% yield. These results suggest that an impurity in the CTAB is very important for nanorod formation. © 2008 American Chemical Society.

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Smith, D. K., & Korgel, B. A. (2008). The importance of the CTAB surfactant on the colloidal seed-mediated synthesis of gold nanorods. Langmuir, 24(3), 644–649. https://doi.org/10.1021/la703625a

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